Overview

Dataset Statistics

Number of Variables 27
Number of Rows 327
Missing Cells 4
Missing Cells (%) 0.0%
Duplicate Rows 0
Duplicate Rows (%) 0.0%
Total Size in Memory 366.4 KB
Average Row Size in Memory 1.1 KB
Variable Types
  • Numerical: 12
  • Categorical: 15

Dataset Insights

Rank is uniformly distributed Uniform
Percent Free/Disc Lunch has 4 (1.22%) missing values Missing
Student/Teacher Ratio is skewed Skewed
Percent African American is skewed Skewed
Percent Asian is skewed Skewed
Percent Hispanic is skewed Skewed
Percent Two or More Races is skewed Skewed
School has a high cardinality: 310 distinct values High Cardinality
School URL has a high cardinality: 327 distinct values High Cardinality
District has a high cardinality: 131 distinct values High Cardinality
District URL has a high cardinality: 131 distinct values High Cardinality
Address has a high cardinality: 327 distinct values High Cardinality
City has a high cardinality: 199 distinct values High Cardinality
City URL has a high cardinality: 199 distinct values High Cardinality
County has a high cardinality: 127 distinct values High Cardinality
Phone has a high cardinality: 327 distinct values High Cardinality
Is Virtual has constant value "No" Constant
School URL has constant length 65 Constant Length
District URL has constant length 61 Constant Length
Phone has constant length 14 Constant Length
Is Virtual has constant length 2 Constant Length
School URL has all distinct values Unique
Address has all distinct values Unique
Phone has all distinct values Unique
Percent Asian has 58 (17.74%) zeros Zeros
Percent Two or More Races has 18 (5.5%) zeros Zeros
  • 1
  • 2
  • 3

Variables


Rank

numerical

Approximate Distinct Count 327
Approximate Unique (%) 100.0%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 164
Minimum 1
Maximum 327
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • Rank is uniformly distributed

Quantile Statistics

Minimum 1
5-th Percentile 17.3
Q1 82.5
Median 164
Q3 245.5
95-th Percentile 310.7
Maximum 327
Range 326
IQR 163

Descriptive Statistics

Mean 164
Standard Deviation 94.541
Variance 8938
Sum 53628
Skewness 0
Kurtosis -1.2
Coefficient of Variation 0.5765
  • Rank is not normally distributed (p-value 4.439875197472901e-210)

School

categorical

Approximate Distinct Count 310
Approximate Unique (%) 94.8%
Missing 0
Missing (%) 0.0%
Memory Size 25095

Length

Mean 11.7431
Standard Deviation 3.9917
Median 11
Minimum 4
Maximum 33

Sample

1st row Kilmer Center
2nd row Thomas Jefferson
3rd row Open
4th row Richmond Community...
5th row Grassfield

Letter

Count 3330
Lowercase Letter 2821
Space Separator 495
Uppercase Letter 509
Dash Punctuation 2
Decimal Number 0
  • The largest value (county) is over 4.57 times larger than the second largest value (river)

School URL

categorical

Approximate Distinct Count 327
Approximate Unique (%) 100.0%
Missing 0
Missing (%) 0.0%
Memory Size 42510

Length

Mean 65
Standard Deviation 0
Median 65
Minimum 65
Maximum 65

Sample

1st row https://www.school...
2nd row https://www.school...
3rd row https://www.school...
4th row https://www.school...
5th row https://www.school...

Letter

Count 14388
Lowercase Letter 13734
Space Separator 0
Uppercase Letter 654
Dash Punctuation 0
Decimal Number 3270
  • School URL has words of constant length

District

categorical

Approximate Distinct Count 131
Approximate Unique (%) 40.1%
Missing 0
Missing (%) 0.0%
Memory Size 31069
  • The largest value (Fairfax County Public Schools) is over 1.93 times larger than the second largest value (Loudoun County Public Schools)

Length

Mean 30.0122
Standard Deviation 2.6596
Median 29
Minimum 25
Maximum 38

Sample

1st row Fairfax County Pub...
2nd row Fairfax County Pub...
3rd row Richmond City Publ...
4th row Richmond City Publ...
5th row Chesapeake City Pu...

Letter

Count 8784
Lowercase Letter 7427
Space Separator 1027
Uppercase Letter 1357
Dash Punctuation 3
Decimal Number 0

District URL

categorical

Approximate Distinct Count 131
Approximate Unique (%) 40.1%
Missing 0
Missing (%) 0.0%
Memory Size 41202
  • The largest value (https://www.schooldigger.com/go/VA/district/01260/search.aspx) is over 1.93 times larger than the second largest value (https://www.schooldigger.com/go/VA/district/02250/search.aspx)

Length

Mean 61
Standard Deviation 0
Median 61
Minimum 61
Maximum 61

Sample

1st row https://www.school...
2nd row https://www.school...
3rd row https://www.school...
4th row https://www.school...
5th row https://www.school...

Letter

Count 14715
Lowercase Letter 14061
Space Separator 0
Uppercase Letter 654
Dash Punctuation 0
Decimal Number 1635
  • The largest value (httpswwwschooldiggercomgovadistrict01260searchaspx) is over 1.93 times larger than the second largest value (httpswwwschooldiggercomgovadistrict02250searchaspx)
  • District URL has words of constant length

Address

categorical

Approximate Distinct Count 327
Approximate Unique (%) 100.0%
Missing 0
Missing (%) 0.0%
Memory Size 27182

Length

Mean 18.1254
Standard Deviation 3.9123
Median 18
Minimum 9
Maximum 30

Sample

1st row 8102 Wolftrap Rd
2nd row 6560 Braddock Rd
3rd row 600 S Pine St
4th row 201 E Brookland Pa...
5th row 2007 Grizzly Trail

Letter

Count 3878
Lowercase Letter 3077
Space Separator 794
Uppercase Letter 801
Dash Punctuation 1
Decimal Number 1219
  • The largest value (rd) is over 2.49 times larger than the second largest value (dr)

City

categorical

Approximate Distinct Count 199
Approximate Unique (%) 60.9%
Missing 0
Missing (%) 0.0%
Memory Size 24313

Length

Mean 9.3517
Standard Deviation 2.7046
Median 9
Minimum 5
Maximum 26

Sample

1st row Vienna
2nd row Alexandria
3rd row Richmond
4th row Richmond
5th row Chesapeake

Letter

Count 2992
Lowercase Letter 2599
Space Separator 66
Uppercase Letter 393
Dash Punctuation 0
Decimal Number 0

City URL

categorical

Approximate Distinct Count 199
Approximate Unique (%) 60.9%
Missing 0
Missing (%) 0.0%
Memory Size 41317

Length

Mean 61.3517
Standard Deviation 2.7046
Median 61
Minimum 57
Maximum 78

Sample

1st row https://www.school...
2nd row https://www.school...
3rd row https://www.school...
4th row https://www.school...
5th row https://www.school...

Letter

Count 16399
Lowercase Letter 15352
Space Separator 0
Uppercase Letter 1047
Dash Punctuation 0
Decimal Number 0

Zip

numerical

Approximate Distinct Count 272
Approximate Unique (%) 83.2%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 23107.7003
Minimum 20105
Maximum 24651
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • Zip is skewed left (γ1 = -1.1518)

Quantile Statistics

Minimum 20105
5-th Percentile 20155.6
Q1 22555
Median 23238
Q3 24063
95-th Percentile 24528.6
Maximum 24651
Range 4546
IQR 1508

Descriptive Statistics

Mean 23107.7003
Standard Deviation 1203.0005
Variance 1.4472e+06
Sum 7.5562e+06
Skewness -1.1518
Kurtosis 0.8781
Coefficient of Variation 0.05206
  • Zip is not normally distributed (p-value 0.0020085922557528096)
  • Zip has 31 outliers

County

categorical

Approximate Distinct Count 127
Approximate Unique (%) 38.8%
Missing 0
Missing (%) 0.0%
Memory Size 26234
  • The largest value (Fairfax County) is over 1.93 times larger than the second largest value (Loudoun County)

Length

Mean 15.2263
Standard Deviation 2.6947
Median 15
Minimum 10
Maximum 21

Sample

1st row Fairfax County
2nd row Fairfax County
3rd row Richmond city
4th row Richmond city
5th row Chesapeake city

Letter

Count 4601
Lowercase Letter 3982
Space Separator 378
Uppercase Letter 619
Dash Punctuation 0
Decimal Number 0
  • The largest value (county) is over 2.77 times larger than the second largest value (city)

Phone

categorical

Approximate Distinct Count 327
Approximate Unique (%) 100.0%
Missing 0
Missing (%) 0.0%
Memory Size 25833

Length

Mean 14
Standard Deviation 0
Median 14
Minimum 14
Maximum 14

Sample

1st row (571) 226-8440
2nd row (703) 750-8300
3rd row (804) 780-4661
4th row (804) 285-1015
5th row (757) 558-4749

Letter

Count 0
Lowercase Letter 0
Space Separator 327
Uppercase Letter 0
Dash Punctuation 327
Decimal Number 3270
  • Phone has words of constant length

Is Title I

categorical

Approximate Distinct Count 2
Approximate Unique (%) 0.6%
Missing 0
Missing (%) 0.0%
Memory Size 21921
  • The largest value (No) is over 26.25 times larger than the second largest value (Yes)

Length

Mean 2.0367
Standard Deviation 0.1883
Median 2
Minimum 2
Maximum 3

Sample

1st row No
2nd row No
3rd row No
4th row No
5th row No

Letter

Count 666
Lowercase Letter 339
Space Separator 0
Uppercase Letter 327
Dash Punctuation 0
Decimal Number 0
  • The top 2 categories (No, Yes) take over 50.0%
  • The largest value (no) is over 26.25 times larger than the second largest value (yes)

Is Charter

categorical

Approximate Distinct Count 2
Approximate Unique (%) 0.6%
Missing 0
Missing (%) 0.0%
Memory Size 21912
  • The largest value (No) is over 108.0 times larger than the second largest value (Yes)

Length

Mean 2.0092
Standard Deviation 0.09549
Median 2
Minimum 2
Maximum 3

Sample

1st row No
2nd row No
3rd row No
4th row No
5th row No

Letter

Count 657
Lowercase Letter 330
Space Separator 0
Uppercase Letter 327
Dash Punctuation 0
Decimal Number 0
  • The top 2 categories (No, Yes) take over 50.0%
  • The largest value (no) is over 108.0 times larger than the second largest value (yes)

Is Magnet

categorical

Approximate Distinct Count 2
Approximate Unique (%) 0.6%
Missing 0
Missing (%) 0.0%
Memory Size 21957
  • The largest value (No) is over 5.81 times larger than the second largest value (Yes)

Length

Mean 2.1468
Standard Deviation 0.3544
Median 2
Minimum 2
Maximum 3

Sample

1st row No
2nd row Yes
3rd row No
4th row No
5th row Yes

Letter

Count 702
Lowercase Letter 375
Space Separator 0
Uppercase Letter 327
Dash Punctuation 0
Decimal Number 0
  • The top 2 categories (No, Yes) take over 50.0%
  • The largest value (no) is over 5.81 times larger than the second largest value (yes)

Is Virtual

categorical

Approximate Distinct Count 1
Approximate Unique (%) 0.3%
Missing 0
Missing (%) 0.0%
Memory Size 21909

Length

Mean 2
Standard Deviation 0
Median 2
Minimum 2
Maximum 2

Sample

1st row No
2nd row No
3rd row No
4th row No
5th row No

Letter

Count 654
Lowercase Letter 327
Space Separator 0
Uppercase Letter 327
Dash Punctuation 0
Decimal Number 0
  • Is Virtual has words of constant length

Number Students

numerical

Approximate Distinct Count 313
Approximate Unique (%) 95.7%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 1218.5841
Minimum 52
Maximum 4287
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • Number Students is skewed right (γ1 = 0.7132)

Quantile Statistics

Minimum 52
5-th Percentile 238.6
Q1 582
Median 1138
Q3 1776
95-th Percentile 2418.4
Maximum 4287
Range 4235
IQR 1194

Descriptive Statistics

Mean 1218.5841
Standard Deviation 753.1233
Variance 567194.7529
Sum 398477
Skewness 0.7132
Kurtosis 0.4827
Coefficient of Variation 0.618
  • Number Students is not normally distributed (p-value 0.0003007051249897194)
  • Number Students has 3 outliers

Number Full-time Teachers

numerical

Approximate Distinct Count 294
Approximate Unique (%) 89.9%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 83.5933
Minimum 6
Maximum 327
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • Number Full-time Teachers is skewed right (γ1 = 0.8392)

Quantile Statistics

Minimum 6
5-th Percentile 21.53
Q1 43.7
Median 80.6
Q3 116.65
95-th Percentile 159.97
Maximum 327
Range 321
IQR 72.95

Descriptive Statistics

Mean 83.5933
Standard Deviation 48.067
Variance 2310.4339
Sum 27335
Skewness 0.8392
Kurtosis 1.6063
Coefficient of Variation 0.575
  • Number Full-time Teachers has 3 outliers

Student/Teacher Ratio

numerical

Approximate Distinct Count 92
Approximate Unique (%) 28.1%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 14.5031
Minimum 4.6
Maximum 187.5
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • Student/Teacher Ratio is skewed right (γ1 = 16.4732)

Quantile Statistics

Minimum 4.6
5-th Percentile 10.1
Q1 12.65
Median 14.1
Q3 15.7
95-th Percentile 17.37
Maximum 187.5
Range 182.9
IQR 3.05

Descriptive Statistics

Mean 14.5031
Standard Deviation 9.8801
Variance 97.6162
Sum 4742.5
Skewness 16.4732
Kurtosis 286.2333
Coefficient of Variation 0.6812
  • Student/Teacher Ratio is not normally distributed (p-value 2.7228722354473595e-20)
  • Student/Teacher Ratio has 8 outliers

Percent Free/Disc Lunch

numerical

Approximate Distinct Count 77
Approximate Unique (%) 23.8%
Missing 4
Missing (%) 1.2%
Infinite 0
Infinite (%) 0.0%
Memory Size 5168
Mean 0.4307
Minimum 0.02
Maximum 1
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • Percent Free/Disc Lunch is skewed right (γ1 = 0.7462)

Quantile Statistics

Minimum 0.02
5-th Percentile 0.1
Q1 0.26
Median 0.41
Q3 0.55
95-th Percentile 0.97
Maximum 1
Range 0.98
IQR 0.29

Descriptive Statistics

Mean 0.4307
Standard Deviation 0.2351
Variance 0.05525
Sum 139.13
Skewness 0.7462
Kurtosis 0.1597
Coefficient of Variation 0.5457
  • Percent Free/Disc Lunch has 14 outliers

Percent African American

numerical

Approximate Distinct Count 75
Approximate Unique (%) 22.9%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 0.2171
Minimum 0
Maximum 0.95
Zeros 15
Zeros (%) 4.6%
Negatives 0
Negatives (%) 0.0%
  • Percent African American is skewed right (γ1 = 1.328)

Quantile Statistics

Minimum 0
5-th Percentile 0.01
Q1 0.05
Median 0.13
Q3 0.315
95-th Percentile 0.7
Maximum 0.95
Range 0.95
IQR 0.265

Descriptive Statistics

Mean 0.2171
Standard Deviation 0.225
Variance 0.05064
Sum 70.98
Skewness 1.328
Kurtosis 0.9834
Coefficient of Variation 1.0367
  • Percent African American is not normally distributed (p-value 1.008294710512505e-06)
  • Percent African American has 15 outliers

Percent American Indian

categorical

Approximate Distinct Count 5
Approximate Unique (%) 1.5%
Missing 0
Missing (%) 0.0%
Memory Size 22282
  • The largest value (0.0) is over 6.69 times larger than the second largest value (0.01)

Length

Mean 3.1407
Standard Deviation 0.3482
Median 3
Minimum 3
Maximum 4

Sample

1st row 0.0
2nd row 0.0
3rd row 0.01
4th row 0.0
5th row 0.01

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 700
  • The top 2 categories (0.0, 0.01) take over 50.0%
  • The largest value (00) is over 6.69 times larger than the second largest value (001)

Percent Asian

numerical

Approximate Distinct Count 29
Approximate Unique (%) 8.9%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 0.04752
Minimum 0
Maximum 0.7
Zeros 58
Zeros (%) 17.7%
Negatives 0
Negatives (%) 0.0%
  • Percent Asian is skewed right (γ1 = 3.573)

Quantile Statistics

Minimum 0
5-th Percentile 0
Q1 0.01
Median 0.02
Q3 0.06
95-th Percentile 0.207
Maximum 0.7
Range 0.7
IQR 0.05

Descriptive Statistics

Mean 0.04752
Standard Deviation 0.07609
Variance 0.00579
Sum 15.54
Skewness 3.573
Kurtosis 19.2262
Coefficient of Variation 1.6011
  • Percent Asian is not normally distributed (p-value 1.737461994852545e-21)
  • Percent Asian has 33 outliers

Percent Hispanic

numerical

Approximate Distinct Count 52
Approximate Unique (%) 15.9%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 0.1206
Minimum 0
Maximum 0.83
Zeros 6
Zeros (%) 1.8%
Negatives 0
Negatives (%) 0.0%
  • Percent Hispanic is skewed right (γ1 = 2.4737)

Quantile Statistics

Minimum 0
5-th Percentile 0.01
Q1 0.04
Median 0.07
Q3 0.145
95-th Percentile 0.44
Maximum 0.83
Range 0.83
IQR 0.105

Descriptive Statistics

Mean 0.1206
Standard Deviation 0.1391
Variance 0.01936
Sum 39.43
Skewness 2.4737
Kurtosis 6.8097
Coefficient of Variation 1.154
  • Percent Hispanic is not normally distributed (p-value 1.718112907501117e-09)
  • Percent Hispanic has 29 outliers

Percent Pacific Islander

categorical

Approximate Distinct Count 2
Approximate Unique (%) 0.6%
Missing 0
Missing (%) 0.0%
Memory Size 22257
  • The largest value (0.0) is over 14.57 times larger than the second largest value (0.01)

Length

Mean 3.0642
Standard Deviation 0.2455
Median 3
Minimum 3
Maximum 4

Sample

1st row 0.0
2nd row 0.0
3rd row 0.0
4th row 0.0
5th row 0.0

Letter

Count 0
Lowercase Letter 0
Space Separator 0
Uppercase Letter 0
Dash Punctuation 0
Decimal Number 675
  • The top 2 categories (0.0, 0.01) take over 50.0%
  • The largest value (00) is over 14.57 times larger than the second largest value (001)

Percent Two or More Races

numerical

Approximate Distinct Count 13
Approximate Unique (%) 4.0%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 0.04398
Minimum 0
Maximum 0.13
Zeros 18
Zeros (%) 5.5%
Negatives 0
Negatives (%) 0.0%
  • Percent Two or More Races is skewed right (γ1 = 0.2059)

Quantile Statistics

Minimum 0
5-th Percentile 0
Q1 0.03
Median 0.04
Q3 0.06
95-th Percentile 0.08
Maximum 0.13
Range 0.13
IQR 0.03

Descriptive Statistics

Mean 0.04398
Standard Deviation 0.02492
Variance 0.00062096
Sum 14.38
Skewness 0.2059
Kurtosis -0.2653
Coefficient of Variation 0.5667
  • Percent Two or More Races is not normally distributed (p-value 2.577498264977584e-07)
  • Percent Two or More Races has 4 outliers

Percent White

numerical

Approximate Distinct Count 95
Approximate Unique (%) 29.0%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 0.5694
Minimum 0.01
Maximum 1
Zeros 0
Zeros (%) 0.0%
Negatives 0
Negatives (%) 0.0%
  • Percent White is skewed left (γ1 = -0.2432)

Quantile Statistics

Minimum 0.01
5-th Percentile 0.093
Q1 0.355
Median 0.58
Q3 0.8
95-th Percentile 0.96
Maximum 1
Range 0.99
IQR 0.445

Descriptive Statistics

Mean 0.5694
Standard Deviation 0.2718
Variance 0.07386
Sum 186.21
Skewness -0.2432
Kurtosis -1.0022
Coefficient of Variation 0.4772

Standard Score

numerical

Approximate Distinct Count 257
Approximate Unique (%) 78.6%
Missing 0
Missing (%) 0.0%
Infinite 0
Infinite (%) 0.0%
Memory Size 5232
Mean 48.5196
Minimum 0
Maximum 94.1
Zeros 1
Zeros (%) 0.3%
Negatives 0
Negatives (%) 0.0%
  • Standard Score is skewed left (γ1 = -0.2644)

Quantile Statistics

Minimum 0
5-th Percentile 17.38
Q1 34.9
Median 49.8
Q3 62.45
95-th Percentile 75.69
Maximum 94.1
Range 94.1
IQR 27.55

Descriptive Statistics

Mean 48.5196
Standard Deviation 18.2515
Variance 333.1185
Sum 15865.9
Skewness -0.2644
Kurtosis -0.3716
Coefficient of Variation 0.3762
  • Standard Score is not normally distributed (p-value 0.008462350758319822)

Interactions

Correlations

Missing Values